For games featuring heroines with catlike ears or anything that would remind it as their signature part or appearance, such as a hairband with cat ears or her hair being shaped exactly like one.

Please do not mix with catgirl tag; almost every catgirl has nekomimi, but not every nekomimi is a catgirl... And catgirl is a child tag of Non-human Heroine, so it's not suitable for human girls with nekomimi.